purchased the 3 Pcs Retsun 2.5'' Width PP Hair Aluminum Durable Door Brush Sweep Seal Sliding Door Brush Seal Strip Weather Stripping Length 39.3'' Easy Mounting to help seal up my sliding glass door. I was looking for a product that was easy to install, durable, and would help to keep out the cold air in the winter and the hot air in the summer.The Retsun door brush sweep seal was easy to install. It came with all the necessary hardware, including screws and drill bits. I was able to install it myself in just a few minutes. The door brush sweep seal is made of durable materials, including aluminum and PP hair. It is also weatherproof, so I don't have to worry about it getting damaged by the elements.Since installing the Retsun door brush sweep seal, I have noticed a significant improvement in the seal around my sliding glass door. There is no longer any cold air coming in in the winter or hot air coming in in the summer. I am also happy to report that the door brush sweep seal has been very easy to maintain. I simply wipe it down with a damp cloth every few weeks to keep it clean.Overall, I am very happy with the 3 Pcs Retsun 2.5'' Width PP Hair Aluminum Durable Door Brush Sweep Seal Sliding Door Brush Seal Strip Weather Stripping Length 39.3'' Easy Mounting. It is a durable, easy-to-install, and effective way to seal up your sliding garage door. I would highly recommend it to anyone looking for a product that can help to keep their pole barn comfortable all year long.Here are some of the pros and cons of the 3 Pcs Retsun 2.5'' Width PP Hair Aluminum Durable Door Brush Sweep Seal Sliding Door Brush Seal Strip Weather Stripping Length 39.3'' Easy Mounting:Pros:Easy to installDurable materialsWeatherproofEffective at sealing out airEasy to maintainCons:expensivewish was longerOverall, I am very happy with it